Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
2200104moderately pollutedexcellent151excellent
210092lightly pollutedexcellent151excellent
200072lightly pollutedexcellent111excellent
190058goodexcellent81excellent
180034goodexcellent51excellent
170026goodexcellent51excellent
160019excellentexcellent31excellent
150019excellentexcellent31excellent
140018excellentexcellent31excellent
130023goodexcellent31excellent
120023goodexcellent31excellent
110028goodexcellent51excellent
100056goodexcellent101excellent
090077lightly pollutedexcellent131excellent
080093lightly pollutedexcellent141excellent
070094lightly pollutedexcellent141excellent
060093lightly pollutedexcellent161excellent
050094lightly pollutedexcellent141excellent
040092lightly pollutedexcellent151excellent
030095lightly pollutedexcellent201excellent
020094lightly pollutedexcellent151excellent
010091lightly pollutedexcellent151excellent
000095lightly pollutedexcellent161excellent
230087lightly pollutedexcellent151excellent